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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average,
the reduction in systolic blood pressure is 70.9 for a sample of size 28 and standard deviation 5.4. Estimate
how much the drug will lower a typical patient's systolic blood pressure (using a 99% confidence
level). Assume the data is from a normally distributed population.
Enter your answer as a tri-linear inequality accurate to three decimal places.
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